Flanged brake-shoe.



F. W. SARGENT.

FLANGED BRAKE SHOE. APPLICATION mm FEB. 11. I9l6.

Patented Sept. 12, 1916.

IN I/Elll TOR $1 A TTOR/VEY FITZ WILLIAM SARGENT, F MAHWAH, NEW JERSEY, ASSIGNOR TO AMERICAN BRAKE SHOE & FOUNDRY COMPANY, OF MAI-IW'AH, NEW JERSEY, A CORPORATION OF NEW JERSEY.

FLANGED BRAKE-SHOE.

Patented Sept. 12, 1916.

Application filed February 11, 1916. Serial No. 77,595.

To all whom it may concern Be it known that I, FITZ WILLIAM SAR- GENT, a citizen of the United States, and a resident of Mahwah, in the county of Ben,

shoe when applied to the car wheels. I

have found that these objectionable noises are caused by the continuous. metallic contact between the outer wall of the flange of the shoe and the outer edge of the flange of the wheel and may be entirely eliminated by offsetting the outer wall of the flange of the shoe, either entirely or in part, and providing a composition insert which contacts with the sides and top of the wheel flange.

A further object is to accomplish the aforementioned ends without reducing the efficiency, or materially affecting the frictional qualities of the brake shoe.

My invention is illustrated in its proferred embodiment in the accompanying drawings, wherein Figure 1 is a view in perspective of a brake shoe embodying the characteristic features of my invention; Fig. 2 is a bottom plan view thereof; Fig. 3 is a view in vertical cross-section thereof, taken on the line 3-3 of Fig. 2; Fig. 1 is a bottom plan view of a modified form of shoe; Fig. 5 is a view in vertical section taken on the line 5--5 of Fig. 4; Fig. 6 is a bottom plan of a further modification of my improved brake shoe; and Fig. 7 is a view in vertical section taken on the line 77 of Fig. 6.

Referring specifically to Figs. 1 to 3, in which latter figure a wheel is shown in outline, my improved flanged brake shoe is formed with a wearing body 10, adapted to contact with the tread 10 of the carwheel. A flange 11 projects from the tread l0, and an attaching lug 12 is carried by the wearing body and flange, allowing the brake shoe to be secured to a brake head.

A pocket 13 is provided in the flange 11, in which is disposed a composition insert or filling 14, formed of such ingredients as to prevent the excessive heating of the flange 15 of the car wheel upon the application of the brake shoe. The outer wall 16 of the flange, which also forms the outer wall of the pocket 13, is so spaced with relation to the remaining elements of the shoe, that is, with relation to the wearing body 10 and at taching lug 12, that it is held beyond, and out of contact with, the outer edge 17 of the car wheel, and remains so spaced, and so shoe illustrated in Figs. 4: and 5, only that portion of the outer wall of the flange 20 which corresponds to the outer wall of the pocket 21, is offset and spaced, so as to be held out of contact with the outer edge of the car wheel flange. In this type of shoe, as in the preceding type, the composition filling 22 extends entirely around the flange of the wheel, and practically eliminates all noises incident to the use of the shoe.

In Figs. 6 and 7, I have disclosed a somewhat further modification of my invention, wherein two pockets 23 are provided in the flange of the shoe, and with the outer wall 24 of the flange effect at these pockets, as at 25. The composition filling 26 in these pockets contacts with both sides and top of the wheel flange, and, interrupting, as well as materially reducing the metallic contact of the shoe flange with the flange of the wheel, practically eliminates the screeching of the shoe.

What I claim is 1. A flanged brake shoe with the outer wall thereof so spaced as to be held out of contact with the outer edge of a car wheel flange, the flange of the brake shoe being provided with a pocket, and a composition filling within pocket.

2. A flanged brake shoe having a pocket in the flange thereof, with the outer Wall of said pocket solocated as to be held out of contact with the outer edge of a car Wheel flange.

3. A flanged brake shoe having a pocket in the flange thereof, with the outer Wall of said pocket so located as to be held out of contact with the outer edge of a car Wheel flange, and a composition filling in said pocket.

4. A flanged brake shoe having a pocket in the flange thereof, and a composition filling in said pocket adapted to contact with the outer edge, top, and inner edge, of a car Wheel flange, and preventing the contact of the outer wall of said pocket with the outer edge of said car Wheel flange.

5. A flanged brake shoe with the outer wall of the flange so located as to be held out of contact with the flange of a car Wheel beyond the outer edge of the flange of the 1* car wheel to which the shoe is applied during wear, and a colnposltion filling disposed within sa1d pocket and adapted to contact with the inner and outer edges and top of said car wheel flange.

Signed at Mahwah, in the county of Bergen and State of New Jersey, this 7th day of February, A. D. 1916.

FITZ VILLIAM SARGENT.

Witnesses:

R. C. Anson, G. T. STUART.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

